CVE-2018-20859

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.0% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-07-30 18:46Z7 YR AGO

Last updated

2024-08-05 12:12Z2 YR AGO

Reserved

2019-07-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

9635879a7c9e883eb836e3a9b668c45834ce4f04b82142655941be22f5d4cff3

• groups.google.comhttps://groups.google.com/forum/#%21topic/openedx-announce/wsm5mtUhhMEx_refsource_MISC
• github.comhttps://github.com/edx/edx-platform/commit/5b144559fbdba7ff673cc1c165aa2d343e07b6bd.patchx_refsource_MISC
• patch-diff.githubusercontent.comhttps://patch-diff.githubusercontent.com/raw/edx/edx-platform/pull/18639.patchx_refsource_MISC